EP1965246A1 - Flüssigkristallanzeigevorrichtung mit flexibler Leiterplattenverkabelung - Google Patents

Flüssigkristallanzeigevorrichtung mit flexibler Leiterplattenverkabelung Download PDF

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Publication number
EP1965246A1
EP1965246A1 EP08003735A EP08003735A EP1965246A1 EP 1965246 A1 EP1965246 A1 EP 1965246A1 EP 08003735 A EP08003735 A EP 08003735A EP 08003735 A EP08003735 A EP 08003735A EP 1965246 A1 EP1965246 A1 EP 1965246A1
Authority
EP
European Patent Office
Prior art keywords
liquid crystal
display device
crystal display
flexible printed
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08003735A
Other languages
English (en)
French (fr)
Other versions
EP1965246B1 (de
Inventor
Kazuya Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Funai Electric Co Ltd
Original Assignee
Funai Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Funai Electric Co Ltd filed Critical Funai Electric Co Ltd
Publication of EP1965246A1 publication Critical patent/EP1965246A1/de
Application granted granted Critical
Publication of EP1965246B1 publication Critical patent/EP1965246B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit

Definitions

  • the present invention generally relates to a liquid crystal display device. More specifically, the present invention relates to a liquid crystal display device having a flexible printed cable.
  • a conventional liquid crystal display device includes a frame 101, a liquid crystal cell 102, a light guide plate 103, a metal bezel 105, a polarizing plate 115, a prism sheet 116, a diffusion sheet 117 and a reinforcing plate 118.
  • the frame 101 is made of a synthetic resin and is open at a front face.
  • the frame 101 includes a base plate 101 a and upper, lower, left, and right side plates 101b to 101 e protruding integrally from outer peripheral edges of the base plate 101 a.
  • a liquid crystal cell 102 and a light guide plate 103 are disposed within the frame 101.
  • the light guide plate 103 is made of an acrylic resin or other such translucent resin.
  • LEDs Light emitting diodes
  • Latching tabs 106 protrude integrally from outer peripheral faces of the side plates 101b to 101 e.
  • the latching tabs 106 are engaged in latching holes 105a formed in the side plates of the metal bezel 105.
  • the metal bezel 105 is removably fitted to the frame 101 in a state of holding down outer peripheral edge of the liquid crystal cell 102.
  • a cell drive-use lead wire 107 and a lighting-use lead wire 108 are extended to outside the frame 101.
  • the cell drive-use lead wire 107 includes a flexible printed cable electrically coupled to the liquid crystal cell 102.
  • the lighting-use lead wire 108 includes a flexible printed cable electrically coupled to the LEDs. Furthermore, one end of the lighting-use lead wire 108 is electrically coupled to the cell drive-use lead wire 107.
  • the lighting-use lead wire 108 is formed in a T shape by a lead wire main body 108a and an extension wire 108b.
  • the lead wire main body 108a is for mounting the LEDs.
  • the extension wire 108b protrudes integrally from the lead wire main body 108a.
  • the lead wire main body 108a and the extension wire 108b include a printed circuit 111 and two insulating films 109 and 110 formed on both sides of the printed circuit 111.
  • One insulating film 109 is partially removed to expose lands 111a of the printed circuit 111 in a middle portion and at both ends of the lead wire main body 108a.
  • the LEDs are attached with solder S to the lands 111a.
  • the other insulating film 110 is also partially removed to expose lands 111b of the printed circuit 111 at the end of the extension wire 108b.
  • the LEDs are affixed to a rear face of the liquid crystal cell 102 by a double-sided adhesive 113 via the lead wire main body 108a and a light blocking tape 112 in order to fix the LEDs at proper locations within the gap 104.
  • the cell drive-use lead wire 107 has the same structure as the lighting-use lead wire 108.
  • the lands 111b of the extension wire 108b are connected to the lands 111c of the printed circuit 111, which are exposed by partially removing the insulating film 109 of the cell drive-use lead wire 107.
  • the reinforcing plate 118 is made of a synthetic resin and fastened to the end of the cell drive-use lead wire 107.
  • the cell drive-use lead wire 107 is connected to a drive circuit via a connector 114 to emit light from the LEDs.
  • the emitted light goes through the light guide plate 103 and illuminates the liquid crystal cell 102 from behind.
  • Japanese Laid-Open Patent Application No. 2005-173302 discloses a liquid crystal display device having a similar structure.
  • the conventional liquid crystal display device not only the insulating film 109 formed on one side of the printed circuit 111, but also the insulating film 110 formed on the other side of the printed circuit 111 has to be partially removed to expose the lands 111a and 111b.
  • the number of process to produce the conventional liquid crystal display device is increased, which correspondingly increase the production expense.
  • the present invention was conceived in light of the above-mentioned problems.
  • One object of the present invention is to provide a liquid crystal display device in which the process to produce the liquid crystal display device is simplified.
  • a liquid crystal display device includes a liquid crystal cell, a light source, a light guide plate, a first flexible printed cable and a second flexible printed cable.
  • the light source is configured to emit light.
  • the light guide plate is configured to guide the light to illuminate the liquid crystal cell.
  • the first flexible printed cable is electrically coupled to the liquid crystal cell.
  • the second flexible printed cable is electrically coupled between the light source and the first flexible printed cable.
  • the second flexible printed cable has a printed circuit, a first insulating film formed on one side of the printed circuit and a second insulating film formed on the other side of the printed circuit. The printed circuit is partially exposed on the one side of the printed circuit to form a first land that is electrically coupled to the light source and a second land that is electrically coupled to the first flexible printed cable.
  • FIG. 1 is a front elevational view of a liquid crystal display device in accordance with one embodiment of the present invention
  • FIG. 2 is a cross sectional view of the liquid crystal display device taken along II-II line shown in FIG. 1 ;
  • FIG. 3 is a cross sectional view of the liquid crystal display device taken along III-III line shown in FIG. 2 ;
  • FIG. 4 is an exploded perspective view of the liquid crystal display device illustrated in FIG. 1 ;
  • FIG. 5A is a perspective view of a flexible printed circuit of the liquid crystal display device illustrated in FIG. 1 ;
  • FIG. 5B is a cross sectional view of the liquid crystal display device taken along V B-V B line shown in FIG. 5A ;
  • FIG. 6 is a front elevational view of a conventional liquid crystal display device
  • FIG. 7 is a cross sectional view of the conventional liquid crystal display device taken along VII-VII line shown in FIG. 6 ;
  • FIG. 8A is a perspective view of a flexible printed circuit of the conventional liquid crystal display device illustrated in FIG. 6 ;
  • FIG. 8B is a cross sectional view of the conventional liquid crystal display device taken along VIII B-VIII B line shown in FIG. 8A .
  • FIGS. 1 to 5 illustrate a liquid crystal display device in accordance with one embodiment of the present invention.
  • the liquid crystal display device is used, for example, as a display component of a laser printer.
  • the liquid crystal display device includes a frame 1, a liquid crystal cell (e.g., electric component means) 2, a light guide plate (e.g., light guide means) 3, a metal bezel 5, a cell drive-use lead wire (e.g., first flexible printed cable or first electric connection means) 7, a lighting-use lead wire (e.g., second flexible printed cable or second electric connection means) 8, a plurality of light emitting diodes (e.g., light source or light emitting means) LEDs, a polarizing plate 15, a prism sheet 16, a diffusion sheet 17 and a reinforcing plate 18.
  • the frame 1 is made of a synthetic resin and is open at a front face.
  • the frame 1 includes a base plate 1a and upper, lower, left, and right side plates 1b to 1e protruding integrally from outer peripheral edges of the base plate 1a.
  • the liquid crystal cell 2 and the light guide plate 3 are disposed within the frame 1.
  • Latching tabs 6 protrude integrally from outer peripheral faces of the side plates 1b to 1e.
  • the latching tabs 6 are engaged in latching holes 5a formed in the side plates of the metal bezel 5.
  • the metal bezel 5 is removably fitted to the frame 1 in a state of holding down outer peripheral edge of the liquid crystal cell 2.
  • the cell drive-use lead wire 7 and the lighting-use lead wire 8 are extended to outside the frame 1.
  • the cell drive-use lead wire 7 includes a flexible printed cable electrically coupled to the liquid crystal cell 2.
  • the lighting-use lead wire 8 includes a flexible printed cable electrically coupled to light emitting diodes (LEDs). Furthermore, one end of the lighting-use lead wire 8 is electrically coupled to the cell drive-use lead wire 7.
  • the lighting-use lead wire 8 is formed in a T shape by a lead wire main body (e.g., main portion) 8a and an extension wire (e.g., extension portion) 8b.
  • the lead wire main body 8a is used for mounting the LEDs.
  • the extension wire 8b extends integrally from the lead wire main body 8a.
  • the lead wire main body 8a and the extension wire 8b include a printed circuit 11 and two insulating films (e.g., first and second insulating films) 9 and 10 formed on both sides of the printed circuit 11.
  • the LEDs include a pair of left and right LEDs provided at two lateral ends of the lead wire main body 8a of the lighting-use lead wire 8.
  • the LEDs are disposed on the lead wire main body 8a so that the LEDs protrude frontward from the lead wire main body 8a.
  • a groove (e.g., groove portion) 20 is formed in a bottom face of the base plate 1 a, along the lower plate 1c of the frame 1 and opposite the lead wire main body 8a. As shown in FIG. 4 , a depth d of the groove 20 is set substantially equal to a thickness t of the lead wire main body 8a.
  • an insertion rccess (e.g., access portion) 21 for inserting the extension wire 8b is formed in the lower plate 1c.
  • the light guide plate 3 is made of an acrylic resin or other such translucent resin.
  • a reflective sheet 22 is disposed on a rear face of the light guide plate 3.
  • the reflective sheet 22 has substantially the same shape as the light guide plate 3.
  • Each of the light guide plate 3 and the reflective sheet 22 includes fitting holes (e.g., fitting hole portion) 23 and a pair of left and right hook components 24.
  • the fitting holes 23 are formed in the light guide plate 3 and the reflective sheet 22 so that each of the LEDs is fitted in the fitting holes 23 from a rear side of the light guide plate 3 and the reflective sheet 22.
  • the left and right hook components (e.g., hook portion) 24 protrude integrally from side edges of the light guide plate 3 and the reflective sheet 22.
  • the left and right hook components 24 engage engagement recesses 25 formed in inner peripheral faces of the left and right side plates 1d and 1e of the frame 1.
  • lands e.g., first and second lands or first and second electric coupling means
  • the lands 11 a and 11b of the printed circuit 11 are formed on only one side of the lighting-use lead wire 8 by partially removing the insulating film 9 formed on the one side of the printed circuit 11.
  • the lands 11 a and 11b are formed on the same side of the lighting-use lead wire 8.
  • the lands 11a are formed on the lead wire main body 8a at lateral ends of the lead wire main body 8a.
  • the lands 11b are formed on the extension wire 8b at the end of the extension wire 8b.
  • the LEDs are electrically coupled with solder S to the lands 11a of the lead wire main body 8a.
  • lands 11b of the extension wire 8b are electrically coupled to lands 11a formed on the cell drive-use lead wire 7. No removal work is performed on the insulating film 10.
  • a light blocking layer 26 is formed at front end faces of the LEDs so that light will not directly leak out from the front end faces of the LEDs to the front side of the liquid crystal display device.
  • the cell drive-use lead wire 7 has the same structure as the lighting-use lead wire 8.
  • the lands 11b of the extension wire 8b are connected to the lands 11c of the printed circuit 11 exposed by partially removing the insulating film 9 of the cell drive-use lead wire 7.
  • the reinforcing plate 18 is made of a synthetic resin and fastened to the end of the cell drive-use lead wire 7.
  • the lead wire main body 8a is fitted into the groove 20 with the LEDs facing the front side of the frame 1.
  • the light guide plate 3 and the reflective sheet 22 are inserted in the frame 1 from the front side of the frame 1.
  • the hook components 24 are engaged in the engagement recesses 25.
  • the LEDs are fitted in the fitting holes 23 formed in the light guide plate 3 and the reflective sheet 22.
  • the lead wire main body 8a is sandwiched between the light guide plate 3 and a bottom face of the groove 20.
  • the liquid crystal cell 2 is inserted in the frame 1 from the front side of the frame 1.
  • the bezel 5 is fitted to the frame 1.
  • the latching tabs 6 are engaged in the latching holes 5a of the bezel 5.
  • the cell drive-use lead wire 7 is electrically coupled to a drive circuit (not shown) via a connector 14.
  • the drive circuit drives the liquid crystal cell 2 and the LEDs.
  • the LEDs are electrically coupled to the drive circuit via the cell drive-use lead wire 7 and the lighting-use lead wire 8 to emit the light.
  • the emitted light goes through the light guide plate 3 and illuminates the liquid crystal cell 2 from behind. Specifically, the light guide plate 3 guides the emitted light and illuminates the liquid crystal cell 2 to display an image.
  • the lead wire main body 8a With the liquid crystal display device, the lead wire main body 8a is fitted into the groove 20. Then, the lead wire main body 8a is sandwiched between the light guide plate 3 and the bottom face of the groove 20. Thus, the LEDs and the lead wire main body 8a are securely fixed in specific positions. Since there is no need for special fixing means, such as the double-sided adhesive 113 shown in FIG. 7 , as was required in the conventional liquid crystal display device for the fixing, there is a corresponding reduction in the number of parts and the production expense.
  • the LEDs With the liquid crystal display device, the LEDs are fitted into the fitting holes 23 of the light guide plate 3. Therefore, the light can be projected from the LEDs more efficiently and concentrated more toward the light guide plate 3. Also, the fitting holes 23 are formed only slightly larger than the LEDs. Thus, a gap formed between the fitting holes 23 and the LEDs become smaller. As a result, the leakage of the light leaked directly from the fitting holes 23 to the front side of the liquid crystal display device is substantially eliminated. Therefore, the light blocking tape 112 as shown in FIG. 7 can be omitted. Furthermore, the LEDs can be properly positioned and fixed with a simple structure. Moreover, there is a corresponding reduction in the number of parts and the production expense.
  • the light guide plate 3 is inserted in the frame 1 and fixed by engaging the hook components 24 in the engagement recesses 25.
  • the lead wire main body 8a can be securely held down by the light guide plate 3.
  • the light guide plate 3 can be prevented from accidentally coming out of the frame 1. Thus, assembly work can be performed more quickly and easily.
  • the lands 11a and 11b are used for connecting the lighting-use lead wire 8 with the LEDs and the cell drive-use lead wire 7.
  • the lands 11a and 11b are formed on the same side of the lighting-use lead wire 8.
  • the lands 11 a and 11b can be formed at the same time (with a single process) by partially removing the insulating film 9.
  • the lands 11a and 11b can be formed by partially removing the insulating film 9 located at the end of the extension wire 8b and at suitable locations of the lead wire main body 8a.
  • the removal process only has to be performed for one insulating film. As a result, the number of process to produce the liquid crystal display device can be decreased.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
EP08003735A 2007-02-28 2008-02-28 Flüssigkristallanzeigevorrichtung mit flexibler Leiterplattenverkabelung Not-in-force EP1965246B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007048485A JP2008209818A (ja) 2007-02-28 2007-02-28 液晶表示装置

Publications (2)

Publication Number Publication Date
EP1965246A1 true EP1965246A1 (de) 2008-09-03
EP1965246B1 EP1965246B1 (de) 2010-07-28

Family

ID=39430975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08003735A Not-in-force EP1965246B1 (de) 2007-02-28 2008-02-28 Flüssigkristallanzeigevorrichtung mit flexibler Leiterplattenverkabelung

Country Status (4)

Country Link
US (1) US7940353B2 (de)
EP (1) EP1965246B1 (de)
JP (1) JP2008209818A (de)
DE (1) DE602008001906D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103228979A (zh) * 2010-12-10 2013-07-31 京瓷株式会社 光源装置及显示装置

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2237102A4 (de) * 2008-03-25 2010-12-29 Sharp Kk Flüssigkristallanzeigevorrichtung
US8755005B2 (en) * 2008-09-24 2014-06-17 Koninklijke Philips N.V. Thin edge backlight with LEDS optically coupled to the back surface
TWI417605B (zh) * 2008-10-06 2013-12-01 Au Optronics Corp 液晶顯示裝置
DE102008057691B4 (de) * 2008-11-17 2011-03-10 Reinhard Kreis Verfahren und Vorrichtung zur Abwärmenutzung von Brennkraftmaschinen
JP4996747B2 (ja) * 2008-12-15 2012-08-08 パナソニック株式会社 面状照明装置および液晶ディスプレイ装置
TWI393958B (zh) * 2009-04-08 2013-04-21 Au Optronics Corp 背光模組與液晶顯示器
JP5436935B2 (ja) * 2009-05-28 2014-03-05 株式会社ジャパンディスプレイ 液晶表示装置
JP2011053330A (ja) * 2009-08-31 2011-03-17 Canon Inc 電子機器
JP5493618B2 (ja) * 2009-09-14 2014-05-14 セイコーエプソン株式会社 点灯装置及びプロジェクター
TWI393961B (zh) * 2009-11-27 2013-04-21 Au Optronics Corp 具雙面顯示功能之顯示裝置、其背光模組及製造方法
US9097832B2 (en) 2010-04-27 2015-08-04 Xiao Lin Yu Liquid crystal display (LCD) system and method
TWI408462B (zh) * 2010-06-22 2013-09-11 Global Lighting Technolog Inc 背光模組以及液晶顯示裝置
US20110299298A1 (en) * 2010-06-08 2011-12-08 Global Lighting Technologies Inc. Backlight module
TWM398642U (en) * 2010-07-14 2011-02-21 Chunghwa Picture Tubes Ltd Light bar fixing structure for backlight module
KR20120017992A (ko) * 2010-08-20 2012-02-29 삼성모바일디스플레이주식회사 표시 장치
JP5039853B1 (ja) * 2011-06-07 2012-10-03 シャープ株式会社 表示装置及びテレビ受信装置
US20130063973A1 (en) * 2011-09-09 2013-03-14 Peter H. Mahowald Lighting fixtures having observable illuminated speckled pattern
TWI468785B (zh) * 2011-11-30 2015-01-11 Au Optronics Corp 顯示模組
KR102133762B1 (ko) 2013-01-10 2020-07-15 삼성디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 표시장치
USD873822S1 (en) 2014-07-04 2020-01-28 Sakai Display Products Corporation Image display
USD877147S1 (en) 2014-07-04 2020-03-03 Sakai Display Products Corporation Image display
USD838253S1 (en) * 2014-07-04 2019-01-15 Sakai Display Products Corporation Image display
CN105093681B (zh) * 2015-09-01 2019-02-12 北京京东方茶谷电子有限公司 一种背光模组及液晶显示装置
CN105717682B (zh) * 2015-12-31 2023-03-21 厦门天马微电子有限公司 一种触控显示装置
JP6907650B2 (ja) * 2017-03-31 2021-07-21 株式会社三洋物産 遊技機

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004258060A (ja) * 2003-02-24 2004-09-16 Kawaguchiko Seimitsu Co Ltd 液晶表示装置
JP2006139020A (ja) * 2004-11-11 2006-06-01 Seiko Epson Corp 電気光学装置及び電子機器
US20070030700A1 (en) * 2005-08-08 2007-02-08 Innolux Display Corp. Backlight module with noise damping protrusion and liquid crystal display with same
JP2007041263A (ja) 2005-08-03 2007-02-15 Sanyo Epson Imaging Devices Corp 電気光学装置及び電子機器
JP2007048485A (ja) 2005-08-05 2007-02-22 Nissan Motor Co Ltd 車両用電池冷却装置
JP2007127742A (ja) * 2005-11-02 2007-05-24 Funai Electric Co Ltd 液晶表示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3783755B2 (ja) 1998-12-08 2006-06-07 東芝ライテック株式会社 電球形蛍光ランプ
JP4007340B2 (ja) * 2003-09-19 2007-11-14 セイコーエプソン株式会社 電気光学装置、電子機器及び電気光学装置の製造方法
JP2006032020A (ja) * 2004-07-13 2006-02-02 Sharp Corp 液晶表示装置
TWM276149U (en) * 2005-04-15 2005-09-21 Innolux Display Corp Back light module
JP2007005309A (ja) * 2005-06-23 2007-01-11 Samsung Electronics Co Ltd 導光板、バックライトアセンブリ、及びこれを有する液晶表示装置
JP4413186B2 (ja) * 2005-12-28 2010-02-10 三菱電機株式会社 面状光源装置及びこれを用いた表示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004258060A (ja) * 2003-02-24 2004-09-16 Kawaguchiko Seimitsu Co Ltd 液晶表示装置
JP2006139020A (ja) * 2004-11-11 2006-06-01 Seiko Epson Corp 電気光学装置及び電子機器
JP2007041263A (ja) 2005-08-03 2007-02-15 Sanyo Epson Imaging Devices Corp 電気光学装置及び電子機器
JP2007048485A (ja) 2005-08-05 2007-02-22 Nissan Motor Co Ltd 車両用電池冷却装置
US20070030700A1 (en) * 2005-08-08 2007-02-08 Innolux Display Corp. Backlight module with noise damping protrusion and liquid crystal display with same
JP2007127742A (ja) * 2005-11-02 2007-05-24 Funai Electric Co Ltd 液晶表示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103228979A (zh) * 2010-12-10 2013-07-31 京瓷株式会社 光源装置及显示装置

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EP1965246B1 (de) 2010-07-28
US20080204623A1 (en) 2008-08-28
JP2008209818A (ja) 2008-09-11
US7940353B2 (en) 2011-05-10

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